1st Gen FlashCharger with 160 PSI pressure tank for mounting tubeless. Good condition, works well, new hose assembly and head. $70 - retailed for like $150

Other stuffs: Garmin 500 OG - $20. Garmin 820 - has the rose pattern screen defect, but otherwise fully functional and readable. $50. Garmin 200 - NO Ant+ just GPS. Looks like a 500. $10. Put your kid on Strava.